GPT-5.6 Terra
gpt-terra
Balanced GPT-5.6 model for capable, cost-efficient everyday work
ReasoningTool CallingAttachmentsStructured Output
Context Window
1.1M
Max Output
128K
Temperature
No
Open Weights
No
Knowledge Cutoff
2026-02-16
Released
2026-07-09
Last Updated
2026-07-09
Modalities
Input:TextImagePDF
→Output:Text
Benchmarks
| Benchmark | Score | Metric | Harness |
|---|---|---|---|
| SWE-Bench Pro | 63.4 | resolve rate | - |
| Terminal-Bench | 87.4 | success rate | - |
| DeepSWE | 69.6 | resolve rate | - |
| GPQA Diamond | 92.9 | accuracy | - |
| FrontierMath | 84.9 | accuracy | - |
| BrowseComp | 87.5 | accuracy | - |
| OSWorld | 50.2 | success rate | - |
| MMMU Pro | 80.7 | accuracy | - |
| Agents' Last Exam | 50.4 | - | |
| Toolathlon | 53.1 | success rate | - |
| Artificial Analysis Intelligence Index | 55 | index score | - |
| Artificial Analysis Coding Agent Index | 77.4 | index score | Codex |
Available Providers (13)
| Provider | Input /1M | Output /1M | Cache Read /1M | Cache Write /1M | Reasoning | Status |
|---|---|---|---|---|---|---|
 NanoGPT | Rp 35.761 | Rp 214.561 | Rp 3.577 | Rp 44.701 | effort | — |
 LLM Gateway | Rp 35.761 | Rp 214.561 | Rp 3.577 | Rp 44.701 | effort | — |
 Kilo Gateway | Rp 35.761 | Rp 214.561 | Rp 3.577 | Rp 44.701 | effort | — |
 OpenRouter | Rp 35.761 | Rp 214.561 | Rp 3.577 | Rp 44.701 | effort | — |
 ZenMux | Rp 44.701 | Rp 268.201 | Rp 4.471 | Rp 55.876 | effort | — |
 Impossibl | Rp 35.761 | Rp 214.561 | Rp 3.577 | Rp 44.701 | effort | — |
 Cloudflare AI Gateway | Rp 35.761 | Rp 214.561 | Rp 3.577 | Rp 44.701 | effort | — |
 Vercel AI Gateway | Rp 35.761 | Rp 214.561 | Rp 3.577 | Rp 44.701 | effort | — |
 OrcaRouter | Rp 35.761 | Rp 214.561 | Rp 3.577 | Rp 44.701 | effort | — |
 Ofox | Rp 35.761 | Rp 214.561 | Rp 3.577 | Rp 44.701 | effort | — |
 Merge Gateway | Rp 35.761 | Rp 214.561 | Rp 3.577 | Rp 44.701 | effort | — |
 Eden AI | Rp 35.761 | Rp 214.561 | Rp 3.577 | Rp 44.701 | effort | — |
 CrossModel | Rp 35.761 | Rp 214.561 | Rp 3.577 | Rp 44.701 | effort | — |